The EXIFON code is based on an analytical model for statistical multistep direct and multistep compound reactions (SMD/SMC model). It predicts emission spectra, angular distributions, and activation cross sections for neutrons, protons, alpha particles, and photons. Multiple particle emissions are considered up to three decays of the compound system.

EXIFON is an easy-to-handle and fast code which predicts cross sections from one global parameter set. The only adjustable quantity is the pairing shift. The output of EXIFON can also be arranged into ENDF/B-6 format.